Ключевые слова: abstract, algebra, art, backdrop, background, blue, collage, dark, design, digit, digital, educational, empty, fade, frame, gradient, grain, graphic, group, grunge, grungy, illustration, jumbled, light, line, material, mathematical, number, one, option, paper, ragged, random, retro, sequence, set, stains, strip, stripped, strippy, texture, textured, vector, wall, wallpaper,